Finding the Third Proportional to 574,454 and 804,991.50

Step by Step Solution

1. Step 1: Write the proportion equation
   574,454 : 804,991.50 = 804,991.50 : x
2. Step 2: Convert to fraction form
   574,454/804,991.50 = 804,991.50/x
3. Step 3: Cross multiply
   574,454x = 804,991.50 × 804,991.50
4. Step 4: Simplify right side
   574,454x = 648,011,315,072.25
5. Step 5: Solve for x
   x = 648,011,315,072.25/574,454
6. Step 6: Final answer
   x = 1,128,047.35